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B6EGB5 (LUXS_ALISL) Reviewed, UniProtKB/Swiss-Prot

Last modified April 16, 2014. Version 37. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (1) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
S-ribosylhomocysteine lyase

EC=4.4.1.21
Alternative name(s):
AI-2 synthesis protein
Autoinducer-2 production protein LuxS
Gene names
Name:luxS
Ordered Locus Names:VSAL_I0645
OrganismAliivibrio salmonicida (strain LFI1238) (Vibrio salmonicida (strain LFI1238)) [Complete proteome] [HAMAP]
Taxonomic identifier316275 [NCBI]
Taxonomic lineageBacteriaProteobacteriaGammaproteobacteriaVibrionalesVibrionaceaeAliivibrio

Protein attributes

Sequence length172 AA.
Sequence statusComplete.
Protein existenceInferred from homology

General annotation (Comments)

Function

Involved in the synthesis of autoinducer 2 (AI-2) which is secreted by bacteria and is used to communicate both the cell density and the metabolic potential of the environment. The regulation of gene expression in response to changes in cell density is called quorum sensing. Catalyzes the transformation of S-ribosylhomocysteine (RHC) to homocysteine (HC) and 4,5-dihydroxy-2,3-pentadione (DPD) By similarity. HAMAP-Rule MF_00091

Catalytic activity

S-(5-deoxy-D-ribos-5-yl)-L-homocysteine = L-homocysteine + (4S)-4,5-dihydroxypentan-2,3-dione. HAMAP-Rule MF_00091

Cofactor

Binds 1 iron ion per subunit By similarity. HAMAP-Rule MF_00091

Subunit structure

Homodimer By similarity. HAMAP-Rule MF_00091

Sequence similarities

Belongs to the LuxS family.

Ontologies

Keywords
   Biological processAutoinducer synthesis
Quorum sensing
   LigandIron
Metal-binding
   Molecular functionLyase
   Technical termComplete proteome
Gene Ontology (GO)
   Biological_processquorum sensing

Inferred from electronic annotation. Source: UniProtKB-HAMAP

   Molecular_functionS-ribosylhomocysteine lyase activity

Inferred from electronic annotation. Source: UniProtKB-HAMAP

iron ion binding

Inferred from electronic annotation. Source: InterPro

Complete GO annotation...

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 172172S-ribosylhomocysteine lyase HAMAP-Rule MF_00091
PRO_1000093300

Sites

Metal binding541Iron By similarity
Metal binding581Iron By similarity
Metal binding1281Iron By similarity

Sequences

Sequence LengthMass (Da)Tools
B6EGB5 [UniParc].

Last modified November 25, 2008. Version 1.
Checksum: 652C12E1D34C2E26

FASTA17219,055
        10         20         30         40         50         60 
MPLLDSFTVD HTRMEAPAVR VAKKMQTPKG DTITVFDLRF TAPNKDILSE KGIHTLEHLY 

        70         80         90        100        110        120 
AGFMRNHLNG TDVEIIDISP MGCRTGFYMS LIGTPVEQTV ANAWIASMED VLNVEDQNKI 

       130        140        150        160        170 
PELNEYQCGT YTMHSLEEAK AIATAILAAG IQVNKNDDLA LPESMLKELS VD 

« Hide

References

[1]"The genome sequence of the fish pathogen Aliivibrio salmonicida strain LFI1238 shows extensive evidence of gene decay."
Hjerde E., Lorentzen M.S., Holden M.T., Seeger K., Paulsen S., Bason N., Churcher C., Harris D., Norbertczak H., Quail M.A., Sanders S., Thurston S., Parkhill J., Willassen N.P., Thomson N.R.
BMC Genomics 9:616-616(2008) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: LFI1238.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
FM178379 Genomic DNA. Translation: CAQ78330.1.
RefSeqYP_002262164.1. NC_011312.1.

3D structure databases

ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING316275.VSAL_I0645.

Proteomic databases

PRIDEB6EGB5.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaCAQ78330; CAQ78330; VSAL_I0645.
GeneID6986582.
KEGGvsa:VSAL_I0645.
PATRIC20851420. VBIAliSal95923_0755.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG1854.
HOGENOMHOG000040371.
KOK07173.
OMARFKQPNQ.
OrthoDBEOG68WRBM.
ProtClustDBPRK02260.

Family and domain databases

Gene3D3.30.1360.80. 1 hit.
HAMAPMF_00091. LuxS.
InterProIPR011249. Metalloenz_LuxS/M16.
IPR003815. S-ribosylhomocysteinase.
[Graphical view]
PfamPF02664. LuxS. 1 hit.
[Graphical view]
PIRSFPIRSF006160. AI2. 1 hit.
PRINTSPR01487. LUXSPROTEIN.
ProDomPD013172. S-ribosylhomocysteinase. 1 hit.
[Graphical view] [Entries sharing at least one domain]
SUPFAMSSF63411. SSF63411. 1 hit.
ProtoNetSearch...

Entry information

Entry nameLUXS_ALISL
AccessionPrimary (citable) accession number: B6EGB5
Entry history
Integrated into UniProtKB/Swiss-Prot: March 24, 2009
Last sequence update: November 25, 2008
Last modified: April 16, 2014
This is version 37 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families